1Edmonson J. Green S, Ivins J, et al. A controlled pilot study of highdose methotrexate as post surgical adjuvant treatment for primary osteosarcoma J. Chin Onology, 1984,2 : 152
2Dubousset J. Misseard G, Kaflifa Ch. Management of osteogenicsarcoma in Children and adolescents. Clin. Orthop, 1991,270:52
3Enneking W-F, Spanier MA, Goodman MA. Current concept review,the surgical staging of musculoskeletal sarcoma. J Bone Joint Surg(Am), 1980,62:1027
4Simon R, Carter FRCS, Rober J, et al. A review of 13 years, experienee of osteosarcoma. Clin Orthop, 1991,270:45
